Properties of the Number 40609

Forty Thousand Six Hundred Nine

Basics

Value: 40608 → 40609 → 40610

Parity: odd

Prime: Yes

Previous Prime: 40597

Next Prime: 40627

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 40609

Divisors: 1, 40609

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001111010100001

Octal: 117241

Duodecimal: 1B601

Hexadecimal: 9ea1

Square: 1649090881

Square Root: 201.51674868357716

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes of the form 2·n²+6·n+1. A176549

Primes having only 0,4,6,8,9 as digits. A61372

Consider the array T(n, m) = m-th prime of the form n·i(i+1)/2 +/- 1. This sequence is the main diagonal. A125765

Prime numbers such that, in base 10, all their proper prefixes and suffixes represent composites. A254754

a(n) = a(n-1)+ a(round(2*(n-1)/3)) +a(round((n-1)/3)) starting a(1)=1. A33498

Primes that are palindromic in factorial base. A333421

Primes with 22 as smallest positive primitive root. A61334

Number of free triangular n-polyplets (triangular polyominoes connected at edges or corners), where turning over is allowed and holes are allowed. A239658

Primes p such that if q is the next prime, p+A004086(q) and q+A004086(p) are prime. A351728

Smallest prime p such that xⁿ - x - 1 splits modulo p. A377496